Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 60.818797] BUG: unable to handle kernel paging request at ffff888001000050 [ 60.818803] PGD de01067 P4D de01067 PUD de02067 PMD 80000000010001e1 [ 60.818815] Oops: 0003 [#1] PREEMPT SMP KASAN [ 60.818824] CPU: 0 PID: 8109 Comm: syz-executor431 Not tainted 4.19.197-syzkaller #0 [ 60.818828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.818841] RIP: 0010:vga16fb_fillrect+0x9c0/0x1940 [ 60.818847] Code: c3 fd 48 63 44 24 10 45 31 f6 48 89 04 24 e8 c7 d0 c3 fd 31 ff 89 de 31 ed e8 2c d2 c3 fd 85 db 4d 89 ec 74 22 e8 b0 d0 c3 fd <45> 88 34 24 83 c5 01 89 df 49 83 c4 01 89 ee e8 8c d1 c3 fd 39 eb [ 60.818851] RSP: 0018:ffff88808f32f2c0 EFLAGS: 00010293 [ 60.818856] RAX: ffff888095e283c0 RBX: 000000000000001b RCX: ffffffff839eaf34 [ 60.818860] RDX: 0000000000000000 RSI: ffffffff839eaf40 RDI: 0000000000000005 [ 60.818864] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 60.818867] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888001000050 [ 60.818871] R13: ffff888001000050 R14: 0000000000000000 R15: 000000000ffeb7ff [ 60.818877] FS: 0000000002394300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 60.818881] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.818885] CR2: ffff888001000050 CR3: 00000000ab91e000 CR4: 00000000001406f0 [ 60.818892] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.818896] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.818898] Call Trace: [ 60.818910] ? memcpy+0x35/0x50 [ 60.818918] bit_clear_margins+0x3f6/0x4b0 [ 60.818925] ? bit_clear+0x4d0/0x4d0 [ 60.818932] ? vga16fb_update_fix+0x4a0/0x4a0 [ 60.818941] fbcon_clear_margins+0x1e2/0x350 [ 60.818948] fbcon_switch+0xf0d/0x1ba0 [ 60.818958] ? fbcon_event_notify+0x1d80/0x1d80 [ 60.818968] ? bit_update_start+0x1f0/0x1f0 [ 60.818974] ? fbcon_cursor+0x531/0x710 [ 60.818984] redraw_screen+0x37d/0x870 [ 60.818990] ? vga16fb_update_fix+0x4a0/0x4a0 [ 60.818997] ? vc_init+0x440/0x440 [ 60.819004] ? fbcon_set_palette+0x4d0/0x5f0 [ 60.819012] fbcon_modechanged+0x6df/0x930 [ 60.819020] fbcon_event_notify+0x197/0x1d80 [ 60.819029] notifier_call_chain+0xc0/0x230 [ 60.819038] blocking_notifier_call_chain+0x85/0xa0 [ 60.819048] fb_set_var+0xc51/0xe20 [ 60.819056] ? fb_set_suspend+0x130/0x130 [ 60.819063] ? __lock_acquire+0x6de/0x3ff0 [ 60.819072] ? lock_acquire+0x170/0x3c0 [ 60.819077] ? do_fb_ioctl+0x350/0xb50 [ 60.819086] ? mark_held_locks+0xf0/0xf0 [ 60.819096] ? lock_acquire+0x170/0x3c0 [ 60.819102] ? do_fb_ioctl+0x33e/0xb50 [ 60.819109] do_fb_ioctl+0x3cf/0xb50 [ 60.819124] ? register_framebuffer+0x9e0/0x9e0 [ 60.819133] ? is_bpf_text_address+0xfc/0x1b0 [ 60.819141] ? kernel_text_address+0xbd/0xf0 [ 60.819149] ? __kernel_text_address+0x9/0x30 [ 60.819157] ? unwind_get_return_address+0x51/0x90 [ 60.819166] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.819172] ? __save_stack_trace+0xaf/0x190 [ 60.819182] ? check_preemption_disabled+0x41/0x280 [ 60.819191] ? trace_hardirqs_off+0x64/0x200 [ 60.819198] ? __kasan_slab_free+0x186/0x1f0 [ 60.819205] ? kmem_cache_free+0x7f/0x260 [ 60.819212] ? putname+0xe1/0x120 [ 60.819221] ? debug_check_no_obj_freed+0x201/0x490 [ 60.819229] ? lock_downgrade+0x720/0x720 [ 60.819236] ? lock_acquire+0x170/0x3c0 [ 60.819242] fb_ioctl+0xdd/0x130 [ 60.819247] ? do_fb_ioctl+0xb50/0xb50 [ 60.819255] do_vfs_ioctl+0xcdb/0x12e0 [ 60.819262] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 60.819268] ? debug_check_no_obj_freed+0x201/0x490 [ 60.819275] ? ioctl_preallocate+0x200/0x200 [ 60.819282] ? putname+0xe1/0x120 [ 60.819289] ? putname+0xe1/0x120 [ 60.819296] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 60.819302] ? kmem_cache_free+0x226/0x260 [ 60.819309] ? putname+0xe1/0x120 [ 60.819316] ? do_sys_open+0x2bf/0x520 [ 60.819322] ? filp_open+0x70/0x70 [ 60.819329] ksys_ioctl+0x9b/0xc0 [ 60.819336] __x64_sys_ioctl+0x6f/0xb0 [ 60.819344] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 60.819351] do_syscall_64+0xf9/0x620 [ 60.819359] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.819365] RIP: 0033:0x43efd9 [ 60.819371] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 60.819375] RSP: 002b:00007fff7797a908 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 60.819381] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043efd9 [ 60.819385] RDX: 0000000020000200 RSI: 0000000000004601 RDI: 0000000000000003 [ 60.819388] RBP: 0000000000402fc0 R08: 0000000000000000 R09: 0000000000400488 [ 60.819392] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403050 [ 60.819395] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 60.819401] Modules linked in: [ 60.819406] CR2: ffff888001000050 [ 60.819413] ---[ end trace b8a931742cb6e79d ]--- [ 60.819420] RIP: 0010:vga16fb_fillrect+0x9c0/0x1940 [ 60.819426] Code: c3 fd 48 63 44 24 10 45 31 f6 48 89 04 24 e8 c7 d0 c3 fd 31 ff 89 de 31 ed e8 2c d2 c3 fd 85 db 4d 89 ec 74 22 e8 b0 d0 c3 fd <45> 88 34 24 83 c5 01 89 df 49 83 c4 01 89 ee e8 8c d1 c3 fd 39 eb [ 60.819430] RSP: 0018:ffff88808f32f2c0 EFLAGS: 00010293 [ 60.819435] RAX: ffff888095e283c0 RBX: 000000000000001b RCX: ffffffff839eaf34 [ 60.819438] RDX: 0000000000000000 RSI: ffffffff839eaf40 RDI: 0000000000000005 [ 60.819442] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 60.819445] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888001000050 [ 60.819449] R13: ffff888001000050 R14: 0000000000000000 R15: 000000000ffeb7ff [ 60.819454] FS: 0000000002394300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 60.819458] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.819467] CR2: ffff888001000050 CR3: 00000000ab91e000 CR4: 00000000001406f0 [ 60.819472] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.819476] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.819479] Kernel panic - not syncing: Fatal exception [ 60.820664] Kernel Offset: disabled [ 61.393643] Rebooting in 86400 seconds..